Wehrli 01-04 Chevrolet 6.6L LB7 Duramax S300 Turbo Install Kit (No Turbo) - Gloss White

Starting with the 14-gauge, mandrel-bent aluminum tubing for the 3-inch intercooler hot and cold side pipes is a smart move. This kit from Wehrli Custom Fabrication is designed to help you upgrade your 2001-2004 Chevrolet Silverado 2500 HD or 3500, or its GMC Sierra counterpart, from the stock IHI turbo to a larger Borg Warner S300 frame turbo. It's a comprehensive package that addresses the entire intake air path, from the air filter to the engine's intake manifold.

You're getting a fabricated aluminum intake with a heavy-duty sheet metal air box and a high-performance dry filter, complete with a pre-filter cover. The Y-bridge is also upgraded to a 3-inch fabricated billet piece, which is crucial for replacing the restrictive stock upper intake manifold and unlocking more horsepower and efficiency. The kit includes high-quality stainless steel braided Parker oil lines, with the feed line routing directly from the engine block's main oil galley. It also features a T4 fabricated steel pedestal designed to accept various popular turbo sizes (sold separately) and mates to 2-inch high-flow stainless steel up-pipes. The included high-temperature ceramic-coated turbo downpipe connects directly to your existing exhaust front pipe using a V-band clamp, meaning no cutting or modifications are needed for your exhaust system. A driver-side transmission dipstick tube is also included to make installing the downpipe easier.

This kit is finished in a gloss white powder coat for a clean look. While the turbocharger itself is sold separately, this kit provides all the necessary plumbing, hardware, silicone boots, t-bolt clamps, V-band clamps, and heat wrap to make the transition as smooth as possible. If you're planning to use a turbo not purchased from Wehrli, be sure to provide the details so they can ensure proper fitment, as you may need to send the turbo in for mock-up.